Mechanism of action of the marine natural product stypoldione: evidence for reaction with sulfhydryl groups

Autor: A. Groweiss, Leslie Wilson, E. T. O'brien, B. H. Lipshutz, William Fenical, D. J. Asai, Robert S. Jacobs
Rok vydání: 1986
Předmět:
Zdroj: Journal of Medicinal Chemistry. 29:1851-1855
ISSN: 1520-4804
0022-2623
DOI: 10.1021/jm00160a009
Popis: Stypoldione, a marine natural product that possesses an o-quinone functional group, has been shown to inhibit a variety of biological processes including cell division. We found that stypoldione binds covalently to sulfhydryl groups of thiol-containing compounds via addition of sulfur to the C-4' position of the quinone ring. We examined the ability of stypoldione to add to sulfhydryl groups of a number of thiol-containing substances, including glutathione, thiophenol, beta-mercaptoethanol, and the protein tubulin. We suggest that the biological actions of stypoldione may be caused by the addition of this compound to thiol groups of biological molecules.
Databáze: OpenAIRE